Assessment of Corrosion Resistant Coatings for a Depleted U-0.75 Ti Alloy

Abstract

Aluminum, zinc, magnesium, Al-Zn, Al-Mg, nickel, titanium, TiN and Al/TiN coatings were applied by the arc plasma physical vapor deposition (PVD) technique to a depleted uranium (DU) alloy for corrosion protection assessment. The as-deposited specimens were examined by scanning electron microscopy (SEM) for surface morphology and tested for adhesion. Electrochemical polarization tests and immersion tests were conducted in aerated 3.5 wt.% NaCl solution. Results of electrochemical polarization scans and observations after long-term exposure tests indicated that both Al-Zn and Al-Mg alloys appear to be the best sacrificial coating materials for improving the corrosion resistance of DU-0.75 Ti.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1990
Accession Number
ADA228237

Entities

People

  • B. Jackman
  • Fang-Kai Chang
  • M. Levy
  • W. B. Nowak

Tags

Communities of Interest

  • Advanced Electronics
  • Weapons Technologies

DTIC Thesaurus Topics

  • Adhesion
  • Air Force
  • Coatings
  • Corrosion
  • Corrosion Resistance
  • Films
  • Materials
  • Materials Laboratories
  • Materials Science
  • Metal Coatings
  • Metals
  • Military Research
  • Physical Vapor Deposition
  • Substrates
  • Tin
  • Tin Coatings
  • Vapor Deposition

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Surface Engineering/Surface Coating Technology.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene